Cooling device for cylinders.



No; 815,257. .y l PATENTED MAR. 1a,- 1906. kC,-H .p-BLo-MsgmoM.

COOLING DEVICE F03' GYLINDE O v Vm o... 8 O .T ,/O w w n... 5\| O F /f WO n. O 3A C l m L P A IINITFI)I sTArFs PATENT OFFICE.

CHARLES H. BLOMSTROM, OF DETROIT, MICILIIGAQI, ASSIGNORTO C. H;

BLoMsTRoM MOTOR COMPANY,

RA'IICN OF MICHIGAN.

OF DETROIT, MICHIGAN, 'A CORPO- COOLING. lar-:VICEy #on C YLIND'ERS,

p No. 815,257.

' specincatio'of Letters Patent..

Patented March 13, 1906.

Application filed-October 8, 1904. Serial No. 227.691.-

To' a/ ZZ whom, it may concern:

Be it known thatl I, CHARLES I-I. BLOM- s'rRoM, a citizen ofthe UnitedStates, residing at Detroit,.county .CII/Vayne, State of Michigan, haveinvented a certain new and useful Improvement in Cooling Devices forCylinders; andI declare the following to be av full, clear, and eXactdescription of the invention, such as `will enable others skilled .inthe art to which it pertains to make and use the same, reference b'einghad to the'accompanying drawings, whichforrn a part ofthis specilioation.

This invention relates to explosive engines. f v

It lhas for its object an improved c onstruction of the engine-.cylinderadapted and intended to effect the-cooling vo' the` cylinder by a bathof air, and provision is made to furnish a large radiating-surface tothe action of the air.

In the drawings, Figure 1 is an elevation of the cylinder,partly 1nsection. IFig. 2 is a` section across a part of the` cylinder.` isa Viewof4 a part of an 'end of the cylinder. Fi 4 is a section oil Thecylinder is made from cast metal, with projecting iianges 2 castintegral with the cyll inder.

Through the flanges are rods, preterably threaded. Those rods which passthrough the circumferential iianges 2 are parallel with the axis of thecylinder. Those rods which pass through the end anges 3 are parallelwith the diameter of 'the cylinder and at ri ht angles to the flangesthemselves. These ro s 4 are laid into the mold at the' time thecylinder is cast, and the metalof the cylinder is poured and the flangesare cast around the rods, lthus'inaking an intimate Fig. 3.

one of the .ends of the connection between the metal of the casting .andthe metal of the rod, and the screwthreads not only serveT to hold therod very securel 1n 1ts place, but they.\furnish van increaseradiating-surface for the escape of heat which laccompanies the use ofthe engine. The rods 5, which pass through the end ilanges, are alsopreferably screw-threaded, and they lie in parallel relation to eachother and at ri ht angles to the flanges 3. The valve-cham er 6 is alsosurrounded with lagles and rovided with the rods.

at I c aim is- 1. A cylinder for combustion-engines hav l Aingin`combination with the cylinder-walls,

iianges cast integral therewith and projecting therefrom and rodspassing.through the ilanges and oontactingt e same s o as to receive heattherefromby conduction, substantiallywas and for the purpose described.

2. A cylinder forcombustion-engines, having in combination with thecylinder-Walls flanges cast integral therewith and project ingtherefrom,. and a threaded rod passing"

